Molding device



J. H. LEMELSON 3,393,890

MOLDING DEVICE July 23, 1968 4 Sheets-Sheet 1 Filed Oct. 20, 1965mvmroa. JEROME H.LEMELSON BY WM 41'1- anall J. H. LEM ELSON MOLDINGDEVICE July 23, 1968 4 Sheets-Sheet 2 Filed Oct. 20, 1965 Fig.8

INVENTOR. JEROME H.LEMELSON BY @252, W

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J. H. LEMELSON MOLDING DEVICE July 23, 1968 4 Sheets-Sheet 3 Filed Oct.20, 1965 FIG.

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INVENTOR. JEROME H.LEMELSON BY July 23, 1968 J. H. LEMELSON 3,393,890

MOLDING DEVICE Filed Oct. 20, 1965 4 Sheets-Sheet 4 FIG. I6 \I26 i ElfinINVENTOR. isromeHLemelson wii m United States Patent 3,393,890 MOLDINGDEVICE Jerome H. Lemelson, 85 Rector St., Metuchen, NJ. 08840Continuation-impart of application Ser. No. 432,504, Feb. 15, 1965, nowPatent No. 3,332,658, dated July 25, 1967. This application Oct. 20,1965, Ser. No. 498,467

2 Claims. (Cl. 249-92) ABSTRACT OF THE DISCLOSURE This disclosure isdirected to a casting mold for easting articles of a casting liquidsettable at room temperature which is formed of a thin sheet ofdeformable thermoplastic material having a central indentationcircumscribed by a surrounding flat planar portion and having adepending circumscribing wall formed integrally with the outer edges ofthe flat, planar portion for supporting the mold on a supportingsurface. A sub-indentation is formed in the flat, planar portion of themold to communicate with the central indentation thereof and an articleor holder is adapted to be supported in the sub-indentation so that theportion thereof extending into the central indentation of the mold isdisposed below the level of the moldable liquid adapted to be placedinto the central identation and whereby the end of the holder disposedin the sub-indentation is frictionally retained therein to form a sealtherewith so as to prohibit the flow of moldable liquid through thesub-cavity.

This invention relates in general to molds and mold assemblies and is acontinuation-in-part of my application, Ser. No. 432,504, filed Feb. 15,1965, now Patent No. 3,332,658 and which relates to my copendingapplication, Ser. No. 281,306 filed on May 17, 196-3, and which isentitled, Molding Technique. In particular this invention relates to arelatively low cost mold which may be advantageously used for formingvarious shaped figures or articles from comestibles, plaster, and otherrelatively low temperature settable materials such as wax, plastics, andthe like that can readily solidify at ordinary room temperature.

It is an important object of this invention to provide an improvedrelatively low cost mold which may be used for casting moldable foodmaterial such as ice cream, ices, gelatin, and the like into variousshaped figures and forms.

Another object is to provide a molding device which can be readilyadapted for use as a toy by relatively young children whereby they canmold their own play things such as soldiers, dolls, vehicles, and thelike from a relatively low temperature moldable material such as waxand/or a moldable plastic material in a relatively safe and simplemanner.

Another object is to provide a molding device which can be readilyfabricated from relatively low cost material as by molding, or bypressure or vacuum forming relatively thin sheets of thermoformablesheet material, such as plastics of the type including polystyrene,cellulose acetate, polyvinyl chloride, propionate and the like.

Another object is to provide a low cost molding device in which anarticle support or axle may be molded in situ within the moldable figureresulting therefrom and serve as a support or means for attaching othermembers thereto.

The foregoing objects and other features and advantages are attained inone form of the invention by a relatively low cost molding devicecomprising of a pair of relatively thin walled members formed ofthermoformable material having formed therein complementary indentationsto define a molding cavity when the pair of members are disposed incontinuous-abutting relationship. Means are provided on the respectivemembers for insuring accurate registration of the'r'espectiveindentation thereof to define the molding cavity.'A means is alsoprovided to define an inlet through which the molding or casting liquidis poured into the molding cavity so formed. Means are also provided forholding the respective thin walled members in continuous abuttingrelationship while the moldable liquid is setting within the cavity.

In another form of the invention, may be formed of a single sheet ofterial which has an indentation therein molding cavity of the article tohe means are also provided in this form molding in situ in a moldablefigure, an article which has a portion thereof projecting into the maincavity of the mold so that when the moldable material is poured into themold and hardens, the article will be retained in the the molding cavitya thin walled mato define the entire molded. If desired, of theinvention for molded figure resulting thereby.

Another form of the invention the molding device may be formed of a pairof complementary thin walled members in which complementary indentationsare formed to define a molding cavity. In this form of the invention,subcavities may be formed for receiving and supporting therein anarticle which is to be molded in situ in the moldable material fromwhich the figure is molded so that the article thus connected moldedfigure.

A feature of this invention resides in a relatively simple mold that canbe readily fabricated of inexpensive material in a simple and economicalmanner, and which is positive in operation.

Another feature of this invention resides in the provision of arelatively simple mold which can be reused for an indefinite period oftime.

Still another feature of this invention resides in the provision of animproved mold construction in which an article can be readily molded insitu within the moldable material setting in the molding cavity of themold.

Other features and advantages will become more readily apparent whenconsidered in view of the description and drawings in which:

FIGURE 1 is a perspective view of a mold constructed in accordance withthe instant invention.

FIGURE 2 is a front view of the mold with the holder therefor removed.

FIGURE 3 is a fragmentary sectional view taken along line 3-3 of FIG. 1.

FIGURE 4 is a perspective view of a modified form of the invention.

FIGURE 5 is an end view of the embodiment of FIG. 4 with portionsthereof shown in section.

FIGURE 6 is a cross sectional view of a modified holder means.

FIGURE 7 is a perspective view of another modified form of theinvention.

FIGURE 8 is a side view of molding device of FIG. 7.

FIGURE 9 is a detailed view of a modified axle construction for use inFIG. 7 for use in a figure constructed from the mold of FIG. 7.

FIGURE 10 is a side elevation view of another modified mold constructionhaving parts thereof shown in section.

FIGURE 11 is a of FIG. 10.

FIGURE 12 is a sectional view taken along line 12-12 of FIG. 11.

FIGURE 13 is a side elevation view of another modified moldconstruction.

a figure formed from the plan view of one of the mold sections FIGURE 14is a perspective view of a vehicle figure formed in the moldconstruction of either FIG. or 13.

FIGURE 15 is a perspective view of another modified form of theinvention.

FIGURE 16 is a sectional view of still another form of the invention.

FIGURE 17 is a section view taken along line 17-17 of FIG. 16.

Referring to the drawings, there are shown several embodiments of a moldconstruction embodying the instant invention. The mold construction ofFIGS. 1 to 3 comprises a pair of complementary thin wall members 20 and21 shaped to define a molding cavity 22 therebetween, and a holder 23.Preferably, the thin wall members 20 and 21 are formed of athermoplastic material in which the indentations 20A and 21A are readilyformed, as for example, either by a pressure forming or a vacuum formingoperation. However, it will be understood that the mold members 20 and21 may be formed of other thin wall materials such as, for example,foil, paper, sheet metal, or the like. Accordingly, each of the thinwall members 20 and 21 have formed therein complementary indentations20A and 21A, which in the assembled form define a molding cavity 22 whenthe planar portions 20B and 21B of the respective thin wall members aredisposed in abutting, contiguous relationship as seen in FIGS. 1 and 2.

In the illustrated form of the invention of FIGS. 1 and 2, the moldingcavity 22 is shaped in the form of a human bust. Each of the respectivewall members 20 and 21 are provided with complementary means to effectregistration of the indentations of the respective mold members 20 and21 to insure accurate alignment of the mold indentations in theassembled position of the mold. As best seen in FIG. 1, the registrationmeans comprises complementary dimples 24 and 25 formed in the cornerplanar portions of the thin wall members 20 and 21. Thus, when thedimples 24 formed in sheet member 20 are disposed in registration withthe complementary dimples 25 formed in sheet member 21, the indentations20A and 21A of the respective mold members are registered to define anaccurate molding cavity.

Formed in the respective mold members 20 and 21 is an indentation 26 todefine an inlet 27 through which a suitable moldable liquid is pouredinto the cavity, as for example, a wax, a comestible, such as ice cream,gelation, ices. and the like, or other suitable relative low temperaturesettable liquids.

To maintain the respective thin wall members 20, 21 in registration, aholding means 23 is provided. In the form of the invention shown inFIGS. 1 and 3, the holding means comprises a U-shaped holder havingopposed upright leg portions 28 interconnected by a bight portion 29.Along the inner edge of the U-shaped portion thus defined, there isprovided a groove or slot 30 of sutficient width to accommodate thedouble thickness of the end wall members 20 and 21 in the assembledposition thereof. Accordingly, with the mold assembled as seen in FIG. 1and held together by holder 23, the moldable material can then bereadily poured through the inlet 27 defined by sub-indentations 26. Torender the holding means self-supporting, an enlarged base 31 may beconnected or formed integral to the bight portion 29 of the holder.

While the illustrated embodiment of FIGS. 1 and 2 discloses the moldingcavity in the shape of the human bust, it will be readily understoodthat the molding cavity may be formed to define any suitable shape orform.

The mold construction described may be readily used as a householdappliance for molding such comestibles as gelatin salads, ice cream,ices and the like. Also, the mold device described may be renderedreadily applicable for use as a toy by young children. When used as atoy, a child may form his own play things from relatively lowtemperature setting materials such as plaster, certain plastics, waxesand the like. The playthings which can be readily molded may comprisecars, airplanes, boats, ships, tanks, soldiers, dolls, and the like,with which a child may amuse himself after he has formed the same.

FIGS. 4 and 5 illustrate a slightly modified form of the invention. Inthis form of the invention, mold 39 comprises a pair of thin wallmembers 40 and 41 each formed with complementary indentations 40A and41A to define in the assembled position thereof a molding cavity 42 ashereinbefore described. As shown, the holder 43 for supporting therespective mold members 40 and 41 in contiguous abutting relationshipcomprises a base member 44 on which a bar 45 extends transverselythereof. The bar 45 is formed with a groove 46 and is sized toaccommodate or receive the bottom peripheral edge portion of theassembled mold members 40 and 41. An upright support 47 is connected tothe base member 44, and it is provided with projecting pins 48 which areadapted to extend through openings 49 formed in the planar portions 40Band 41B of the respective mold members 40 and 41. The arrangement issuch that projection of the pins 48 through the opening 49 effectregistration of the complementary indentations of the mold members 40and 41 in the assembled position thereof.

Suitable clamp means 50 are connected to the support 47 for maintainingthe side and upper peripheral portions of the mold members 40 and 41 incontiguous abutting relationship in the assembled position.

In the form illustrated in FIGS. 4 and 5, the complementary indentationsdefined in the assembled form a substantially spherical form. Connectedin communication with the interior of the molding cavity defined by moldmembers 40 and 41 is an inlet 52 through which the moldable material ispoured into the cavity.

FIG. 6 illustrates a modified form of holder 60. As shown, the holder ofFIG. 6 comprises simply an integrally formed plastic clip which issubstantially H shaped in cross section. The gripper portion of the clipis defined by spaced jaw portions 61 and 62 which are serrated along theinner edge thereof to assure positive gripping action. An arrangement ofthe clip is such that the inherent resiliency and memory of the materialfrom which it is formed tends to bias the jaw members 61 and 62 towardtheir closing or gripping position. Thus, a force exerted on the otherends 61A and 62A of the clip will cause the jaw portions 61 and 62 tospread toward an open position. Thus it will be readily apparent that byutilizing several of the clips, as described, in circumferentiallyspaced relationship about the planar portion 01 the mold construction,as described with reference to FIGS. 1 to 3 or 4 and 5, can be utilizedto secure the respective mold members thereof together.

FIGURE 7 illustrates a modified form of the invention. In this form ofthe invention, the mold 65 is defined by a single sheet of thin wallmaterial 66. In the illustrated embodiment of FIG. 7, the thin wallmaterial 66 is defined by a planar portion 66A in which a molding cavity67 is formed. Connected to the peripheral edge of the planar portion 66Ais a circumscribing depending wall 68 to space the planar portion 66Afrom a supporting surface. Accordingly, the mold 65 of FIG. 7 may bereadily formed either by vacuum forming or pressure forming.

In the illustrated embodiment of FIG. 7, cavity 67 is shaped to definethe exterior portion of an automobile or vehicle 69. Formed integralwith the main cavity 67 of the mold, there is formed a plurality oflaterally extending sub-cavities 70 adjacent either end of the maincavity. The sub-cavities 70 define a recess for retaining therein anarticle, which in the illustrated embodiment comprises a rod 71, whichis to function as the axle of the vehicle to be molded. Accordingly, asshown in FIG. 7, the article or rod forming the axle has its endportions supported in the opposed sub-cavities '70 with the intermediateportion 71A extending across the main cavity 67. The

axle 71 resting in cavities 70 is spaced from the top 66A of the mold 65by the depth of the sub-cavity and may also comprise means for rotatingthe article molded therein or otherwise supporting same.

To form the article, a molding or casting material is poured directlyinto the cavity 67 until the level of the molding liquid issubstantially flush with the top planar surface 66A of the mold wherebythe intermediate part of the rod or axle is submerged below the level ofthe moldable material. When the material has set, the rod or axle 71 isembedded in situ within the moldable or settable material. After thematerial has set, and the article formed is removed from the mold,wheels 72 may then be rotatably journalled on the extended end portionsof the axles so that the figure of the vehicle may be completed.

In FIG. 9, a modified axle construction 75 is shown. In this form of theinvention, the axle 75 is provided with a U shaped configuration 75Aintermediate the ends thereof. Accordingly, with the construction of theaxle shown in FIG. 9, the intermediate portion 75A thereof is thusoffset so that it will extend deeper within the body of the cavity 67 ofmold 65 when such axle construction is employed.

FIGS. and 11 illustrate a further modified mold construction comprisingan assembly 82 in which the axle 80 of a vehicle 81 may be moldeddirectly into the body of the vehicle. As shown, the mold 82 is definedby a pair of thin wall sheet members 83 and 84, preferably formed of asuitable plastic material. Each has formed therein complementaryindentations 83A and 84A which may be formed by vacuum or pressureforming. One of the mold members 83 has an indentation 83A which definesan upper portion of a vehicle to be formed and the indentation thereofis circumscribed by a substantially rectangular planar portion 83B.Extending laterally adjacent the front and rear ends of the mainindentation 83A, are a pair of opposed axially aligned laterallyextending subcavities 85 in which the article or axle 80 is adapted tobe positioned. Since the sub-cavities 85 are formed in the planarportion of the mold member 83 that circumscribes the molding cavity 83A,the rods or axles supported therein are disposed below the plane of theplanar marginal portion that circumscribes the cavity 83A. Thecomplementary mold portion 84, formed of a thin Wall sheet material, hasformed therein a relatively shallow indentation 84A to define the underportion of the vehicle to be formed. Surrounding the indentation 84A ofmember 84 is a planar portion 84B adapted to be disposed in contiguousrelationship with the planar portion of the mold member 83 in theassembled position of the mold. When the respective complementary thinwall members 83 and 84 are assembled and respective planar marginalportions thereof are disposed in contiguous relationship, the rods oraxles 80 are held captive therebetween in the sub-cavity across themolding cavity 82'.

Means in the form of complementary dimples 85' as hereinbefore describedare provided in the corner portions of the mold members 83, 84 to placethe respective indentations 83A and 84A into registration.

The respective mold members 83 and 84 in turn are maintained inregistration by any of the suitable holding means hereintofor described.Thus, when a material is poured into the cavity through the inlet 86defined by the mold members, the material will flow around the axles 80held captive between the mold members 83, 84. Thus, after the materialhas set, the respective mold members are readily separated 1n theremoval thereof from the holders, and the axles trapped between them areembedded in the article molded.

Wheels 87 may then be rotatably attached to the extended ends of theaxle 80 by means of a fastener 88, the latter shaped to simulate the hubof a wheel as shown in FIG. 14. Accordingly, when used as a toy, youngchildren can mold and build their own toys in a relatively simple andinexpensive manner.

FIGURE 13 illustrates another form of mold construction for forming avehicle or other suitable shape. In this form, the mold assembly 89comprises molding members 83 and 90, each being provided withcomplementary molding indentations 83A and 90A. In this form of theinvention, the respective indentations 83A and 90A are concave in thesame direction so as to nest in the assembled position the respectivemold members 83 and 90. Thus, the mold defines an external shell orshape of a figure to be formed, thus requiring only a minimum ofmoldable material to be used to define the molded article. For allpractical purposes, member 83 of FIG. 13 is substantially similar tothat hereinbefore described with reference to FIGS. 10 and 11, i.e., itis provided with subindentations formed in the planar portion whichcircumscribes the main indentation 83A. The respective complementarymembers 83, are also formed so that the respective indentations 83A and90A when nested retain an axle in proper position therebetween asindicated in FIG. 13. The spacing between the respective indentations83A and 90A of the thin wall members 83 and 90 are connected intocommunication with an inlet 91 through which the moldable material ispoured. Accordingly, axles 92 are readily molded in situ within the moldwhen material sets. When the respective thin wall members 83 and 90 areseparated the axles are then embedded in the cast articles. The endportions of axles that extend beyond the outline of the figures are thenfitted with wheels to complete the vehicle so cast.

FIGURE 15 illustrates another modified form of the invention. In thisform of the invention, the mold is illustrated as being formed of' asingle sheet of thin wall material. Accordingly, the mold 110 may beformed of a suitable thermoplastic material which may be vacuum formedinto the desired shape, e.g. as illustrated or the mold 110 may beinjection molded. Also, the mold 110 may be formed of suitable sheetmetallic material which maybe drawn or stamped to shape.

In the illustrated form, the mold 110 is defined by a circumscribingplanar portion 112 that circumscribes a molding cavity 111C which isformed or depressed in the central surface thereof. Accordingly, themolding cavity 111C is defined as an indentation having a circumscribingwall portion defined by opposed end wall portions 114 and opposed sidewall portions 115, and a bottom wall portion 116.

Accordingly, the molding cavity or indentation 111C is adapted toreceive a body of moldable liquid which is adapted to set to define amolded article conforming to the shape of the molding cavity 111C, aswill be hereinafter described.

A circumscribing depending wall 111 is formed integral with theperipheral outer edge of the planar portion 112. As shown, the height ofthe circumscribing depending wall 111 is made greater than the depth orindentation of the molding cavity 111C so that the circumscribing wall111 may support the same from a supporting surface. If desired, alaterally extending flange 113 may be formed integral with thecircumscribing depending wall 111 to provide a more stable support forthe mold. It will be understood that the molding cavity may be formed inany suitable shape in which the moldable liquid is desired to be formed.

In accordance with this invention, a sub-cavity 117 is formed in one endof the planar surface. As shown, one end 117A of the sub-cavity 117 isdisposed into communication with the main cavity or indentation 111C.

An article 118 is retained in the sub-cavity 117 so that one end portion119 projects into the indentation or molding cavity 111C. In theillustrated form of the invention, the article 118 adapted to be held inthe sub-cavity 117 may comprise a wire which is particularly formed sothat one end 119' projects into the main molding cavity, and the otherend 119 thereof is reversely bent to provide means whereby the articlemay be gripped upon the setting of the molded material to remove thesame from the mold. As shown, the inner end 119 of the wire or articleprojecting into the molding cavity is provided with a laterally bent endportion. By providing the lateral bend at end 119, it will be noted thatwhen the liquid moldable material has set, the lateral bend prevents thearticle 118 from being withdrawn from the mold resulting therefrom. Theintermediate portion of the article 118 is disposed in the sub-cavity,with the projecting end being laterally deformed intermediate the lengththereof so that the projected end 119' is disposed beneath the level ofthe molding liquid when the main molding cavity 111C is filled with amoldable liquid.

The arrangement of the sub-cavity 117 in conjunction with the article118 adapted to be held therein is such that the article may be readilymaintained in place by frictional engagement thereof with the side wallsof the sub-cavity 117. Accordingly, it will be noted that the article118 retained in the sub-cavity will be held in place during the settingof the moldable liquid in the molding cavity 111C. Accordingly, afterthe liquid has set, the molded material may be removed from the cavitysimply by lifting the end 119 of the article 118. Also, since thearticle 118 is permanently embedded in the article mold, it may beutilized as the means for handling, hanging or holding the moldedobject.

FIGURES 16 and 17 illustrate a modified form of the invention. In thisform of the invention, the mold device 120 is likewise defined by asingle sheet of material of plastic, metal and the like, which is formedwith a planar portion 121 circumscribing an indentation or cavity 121C.Accordingly, the main molding cavity 121C is defined by circumscribingdepending walls 124 and a bottom wall 126. In accordance with this formof the invention, a sub-cavity 127 is formed in the planar surface 121in at least one end thereof which extends through the circumscribingwall 122 and the circumscribing wall 124 of the molding cavity.Accordingly, the sub-cavity 127 is disposed in communication therewith.If desired, a laterally extending flange 123 may be integrally formedwith the circumscribing, depending wall 122 which supports the moldingcavity off a supporting surface.

In accordance with this invention, an article 129 is adapted to beretained in the sub-cavity 127 so that one end thereof 130 extends intothe molding cavity 121C and the other end 128 thereof extends outwardlybeyond the depending circumscribing wall 122. In this form of theinvention, it is to be noted that the article may comprise a stick 129which has its end 130 extending into the molding cavity formed as areduced end portion. The purpose of reducing the end 130 of the stick isinsured that the extended end 130 is submerged beneath the level of themolding liquid adapted to be located in the molding cavity as indicated.

In this form of the invention, it is to be noted that the sub-cavity 127which is in communication with the main molding cavity 121C is shaped soas to frictionally retain between the side walls thereof the stick orarticle 129 as best seen in FIG. 17. Accordingly, the article isfrictionally retained in the sub-cavity 127 and it also functions as aseal to prevent the liquid in the mold from escaping through the end ofthe sub-cavity 129. Accordingly, with the article 129 in position andthe moldable liquid poured into the molding cavity, so that the level ofliquid is above the end of the stick as shown in FIG. 16, it will benoted that upon hardening of the liquid, the stick is embedded in themoldable fluid. Accordingly, the liquid upon setting can be readilyremoved simply by raising the end of the stick to remove the moldedarticle from the cavity.

Accordingly, it will be noted that the molding devices herein describedmay be readily adapted for use in molding various types of material, asfor example, plasters, wax, plastic, ice cream, ices, gelatines and thelike into any desired form depending upon the configuration or shape ofthe mold.

From the foregoing it will be noted that cavities defined by therespective molds herein described may be shaped to assume any desiredconfiguration or form. Also the type of moldable material which ispoured into the respective mold may vary depending upon the use orapplication of the mold. The instant invention contemplates thatarticles may be molded in situ within the molded figure resultingthereby so that, as for example, in the case of forming a molded plaqueor the like, a supporting hook or holder may be molded in situ therein.In the case of molding comestibles, such as ice cream, ice and the like,a stick by which the same may be held may be molded thereinto; or whenused in toy making, the axles of vehicles as herein described.

While the instant invention has been described with reference to aparticular embodiment thereof, it will be appreciated and understoodthat variations and modifications thereof may be made without departingfrom the spirit or scope of the instant invention.

What is claimed is:

1. A casting mold for casting articles of a casting liquid settable atroom temperature comprising a thin sheet of thermoplastic material whichhas formed therein a centrally disposed indentation defining a moldingcavity for receiving and retaining therein a casting liquid when saidmold is positioned with said indentation disposed downwardly, and a fiatplanar portion surrounding said cavity, said planar portion havingformed therein a subindentation disposed in communication with saidmolding cavity and projecting outwardly therefrom wherein saidsub-indentation has a substantially smaller volume than the volume ofsaid molding cavity,

a circumscribing depending wall formed integrally with the outer edge ofsaid fiat, planar portion for supporting said indentation on asupporting surface and a circumscribing base extending laterally aboutthe bottom edges of said depending wall,

said sub-indentation being adapted to receive a holder for the articleto be cast in said mold, said holder comprising a flat member having areduced end portion and an enlarged end portion whereby the enlarged endportion of said holder is adapted to be received and held in place insaid sub-indentation so that the reduced end portion thereof projectsinto the volume defined by the main indentation so that said enlargedend portion extends above the fiat planar portion of the mold and thereduced end portion of the holder extends into the main cavity so as tobe disposed below the level of the molding liquid adapted to be receivedtherein so that when a casting liquid is poured into the mainindentation and substantially fills the cavity, the reduced end of theholder will be beneath the surface of the casting liquid in said cavityand will become imbedded in the resulting casting and whereby theenlarged end portion received in said sub-cavity forms a seal therewithto prohibit the flow of moldable liquid to said sub-cavity.

2. A mold formed of relatively thin sheet material for casting solidfigures from a relatively low temperature casting liquid comprising:

a single sheet of thin wall material having an indentation formed in thecentral planar surface thereof, said indentation being circumscribed bya flat, planar portion,

a circumscribing depending wall formed integrally with the outer edge ofsaid planar portion for supporting said indentation,

and a circumscribing base extending laterally of said depending wall,

means formed in said flat, planar portion defining oppositely disposedsub-cavities, each of said subcavities being disposed in the flat,planar portion of References Cited said mold intermediate the Widththereof between UNITED STATES PATENTS the circumscribing depending walland the central 1,095,866 5/1914 Horat mdematfon 1,312,325 3/1919 Hinck249-97 each of said sub-cavities being disposed in communrca- 5 2,1512823/1939 Stamp tron with said central indentation, 2,193,342 3/1940 Pricesaid sub-cavities being adapted to receive the opposed 2,212,764 8/1940Y k 249-160 end portions of an article whereby the intermediate2,312,046 2/ 1943 Neilson 249-97 portion of said article is disposedtransversely of 2,591,261 4/1952 Holahan 249-92 said indentation andbeneath the surface of the mold- 10 2,682,234 6/ 1954 Baldanza 249--92able liquid adapted to be poured into said cavity, so 3,109,201 11/ 1963Dulmage that when said liquid hardens, said article will be 3,295,8181/1967 Kreiel' retained by the solid figure resulting therefrom withFOREIGN PATENTS the opposed ends of the article extending beyond the 15216 516 8/1958 Australia solid figure upon removal of the solid figurefrom the mold. J. HOWARD FLINT, JR., Primary Examiner.

